Camera with selectable automatic and manual exposure control
US4208110A · kind A · utility
5Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1978 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Sep 18, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B7/089
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the disclosed camera exposure control device, a first control automatically controls the camera exposure on the basis of a signal generated by a first brightness sensor. A second control automatically controls an exposure on the basis of a manual setting that responds to a second brightness sensor. A mode selector enables either an electromagnetic actuator that operates the first exposure control or a mechanical actuator that operates the second control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.